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/*******************************************************************************
* Copyright (c) 2007 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.prov.engine;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.equinox.internal.prov.engine.Messages;
import org.eclipse.equinox.prov.core.helpers.MultiStatus;
import org.eclipse.osgi.util.NLS;
public abstract class Phase {
protected final String phaseId;
protected final int weight;
protected final String phaseName;
protected Phase(String phaseId, int weight, String phaseName) {
if (phaseId == null || phaseId.length() == 0) {
throw new IllegalArgumentException("Phase id must be set.");
}
if (weight <= 0) {
throw new IllegalArgumentException("Phase weight must be positive.");
}
if (phaseName == null || phaseName.length() == 0) {
throw new IllegalArgumentException("Phase name must be set.");
}
this.weight = weight;
this.phaseName = phaseName;
this.phaseId = phaseId;
}
public String toString() {
return "Phase: " + this.phaseName + " - " + this.weight; //$NON-NLS-1$ //$NON-NLS-2$
}
protected MultiStatus perform(EngineSession session, Profile profile, Operand[] deltas, IProgressMonitor monitor) {
MultiStatus status = new MultiStatus();
// log.start(log.info(Messages2.Engine_Performing_Phase, this.phaseName));
perform(status, session, profile, deltas, monitor);
// log.stop();
if (status.matches(IStatus.CANCEL)) {
status.setMessage(Messages.Engine_Operation_Canceled_By_User);
} else if (status.matches(IStatus.ERROR)) {
status.setMessage(NLS.bind(Messages.Engine_Error_During_Phase, this.phaseName));
}
return status;
}
protected abstract void perform(MultiStatus status, EngineSession session, Profile profile, Operand[] deltas, IProgressMonitor monitor);
}
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